Window-grating.



J. D. HUGHES 85 F. A. RETTIG. WINDOW GRATING.

APPLICATION FILED AUG. 8, 1908.

91 643, Patented Mar. 8, 1910.

2 SHEETS-SHEET l.

J. 1). HUGHES & F. A. RETTIG. WINDOW GBATING. APPLICATION FILED AUG. 8,1908. 51,64 Patented Mar.8, 1910.

2 SHEETS-SHEET 2.

JOSEPH D. HUGHES AND FREDERICK A. RE'ITIG, OF CHICAGO, ILLINOIS.

WIND OW- GRATING.

Specification of Letters Patent.

Patented Mar. 8, 191W.

Application filed. August 8, 1908. Serial No. 443,509.

To all whom it may concern:

Be it known that we, JOSEPH D. I-Inonns and FREDERICK A. Burns, citizensof the United States, both residing at Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin lNindow-Gratings, of which the following is a specification.

Our invention relates to gratings for windows or doors, and has for itssalient object to provide a folding grating in association with thecasing of a window or door, arranged to fold within and be concealed bythe casing when not in use, and, in use, to extend as a barrier acrosssubstantially the entire area of the window or door.

A further object of our invention is to provide a grating of thecharacter described which, when folded, lies in a space of small lateralcompass, wholly within one side of the casing, and when extended effectslocking connection with parts upon the other side of the casing.

A still further object of our invention is to provide such a structurehaving adequate means of support and retentlon so that when extended andlocked in open position it has connection with rigid bearing and lockingparts on opposite sides of the casing at a plurality of separatedvertical points, thereby insuring strength to resist efforts to breakdown such barrier.

Another object of our invention is to provide in conjunction with such agrating structure a multiple point lock, for positively securing thefree edge of the grating to the side of the casing remote from itspoints of permanent attachment, at the several vertically separatedpoints of support, and key-operable from the inside only of the window.

Other objects of our invention will become apparent from the followingdescrip tion, taken in conjunction with the accompanying drawings,wherein- Figure 1 is an elevation from the inside of a window equippedwith our invention, parts being broken away, Fig. 2 is a verticalsection on line 2-2 of Fig. 1; Fig. 3 is a horizontal section one line3-3 of Fig. 1; Fig. 4 is a similar section showing the grating folded orclosed, as when not in use. Figs. 5, 6, and 7 are details of'parts ofthe locking mechanism.

In general our invention contemplates the provision, in conjunction witha window frame or casing providing recesses extending vertically onopposite sides thereof, preferably adjacent the face of the casingtoward the interior of the building, of a folding grating, arranged whenopen to extend from its points of anchorage within the recess at oneside of the casing across the window opening, transversely andvertically, and into locking engagement with parts on the opposite sideof the casing, and when folded to lie all in the same plane as whenextended but entirely within the confines of the recess wherein it isanchored,

and the further provision of parts upon the casino for coveringandcompletely concealing t e recesses 1n the casing when the grating isnot in use.

Also our invention contemplates the anchorage of the grating in suchmanner as to secure it at several vertically separated point-s againstlateral displacement, and the provision of key-released lockingmechanism for engaging and securing the free edge of the grating atseveral separated points, when the grating is open or in use.

In the specific construction shown, 10 in dicates a building wallprovided with an opening to be protected by the folding grating, suchopening being bounded by a suitable frame 11, herein illustrated as asuitable window casing. The opening in the wall may be provided with ausual closure, such as the customary window sashes herein illustrated,but such ordinary sashes form no part of our invention.

For clearness we will hereinafter arbitrarily designate the side or faceof the window frame toward the interior of the build ing as the inside;that side or edge of the frame to which the grating is permanentlysecured as the anchorage side; the opposite side as the locking side;the direction at right angles to the plane of the window glass aslateral; and the direction parallel to such window glass as transverse.

Onthe anchorage side the frame 11 has built out transversely anextension 11, inclosed on three sides by the building wall, and theframe is constructed to afford on said anchorage side a deep transverserecess, extending vertically the full height of the window-opening, andindicated at 12. On the locking side a shallower recess, 13, is

provided, said recesses alining transversely and being preferablydisposed inside of the normal closure or window sashes. Closures, 14 and15, are preferably provided for the respective recesses 12 and 13, suchclosures being preferably strips of material matching the window frame,and hinged at their inside edges, as shown at 16, so that when closedthey close and conceal the recesses and give the window framesubstantially the appearance of being of ordinary, solid construction.Small knobs may be provided upon such closures to facilitate openingthem, if desired.

The folding grating herein shown comprises a suitable series oflazy-tong levers, 19, connected at their points of juncture by pivots20, in usual fashion, such lever system being connected at oppositesides to the similar angle-bars 21 and 22, each such connection beingeffected through one fixed pivot-joint 23, and other pin-and slotconnections, 24:, to provide for the lever system terminal attachmentswhich permit it to fold and yet give it adequate strength. The angle-bar21 is secured to the frame extension 11 at a plurality of separatedpoints, as by screws 26, and the parts are so proportioned that when thegrating is folded in the transverse plane in which it constantly lies,it is entirely concealed within the anchorage recess, and is overlain bythe closure 14'.

The angle-bar 22 at the locking edge of the grating is provided with aplurality of vertically-spaced projecting studs, 27, and within thelocking recess 13 is arranged a rigid, vertical receiving-strip 28,having made therein bushed apertures 29, for the reception of theseveral studs 27. To the back of this receiving strip a key-operated,multiple-point locking device is secured for locking each of the severalstuds 27 against withdrawal from its receiving aperture. To this end weprovide in the upper surface of each stud a notch 27 and arranged uponthe rear face of the receiving-strip 28 a vertical bar, 30, guidedlysupported by pin-and-slot connections 31, and provided withlaterallyprojecting tongues 32, adapted to engage respectively thenotches in studs 27 thereby to form a locking mechanism for all of thestuds, operable, as preferred either by gravity, or under tension of aspring 30. For raising the locking bar to release the studs, anysuitable key-controlled mechanism may be employed, the simple deviceherein illustratively shown comprising a transverse pin 33 protrudingfrom the locking bar 30 in such relation to a key-barrel 34, accessibleonly from the inside of the window, that when a key 35 is inserted intothe barrel with its blade horizontal, and is then rotated aquarter-turn, it lifts the pin 33 and the locking bar.

The operation of our grating will now that numerous changes might bemade in be apparent. hen the window opening should be unobstructed, asin the day-time, the grating is unlocked and folded back into the recessin the anchorage side of the easing, and both the grating and theapertured receiving strip are concealed by the closures for theirrespective recesses; but when it is desired that the window openingshall be barred, as at night, the recess closures are swung open, thebarrier drawn across the window, and the free edge of the grating issecured by the locking device at the several separated points where itsstuds engage the receiving strip.

While we have herein particularly described our invention as applied towindow protection, it will be apparent that it is applicable to anybuilding-opening, and that if preferred the grating might be made tofold vertically instead of transversely, and

the details of construction without departure from the spirit and scopeof our inven tion.

What we claim is:

1. In a protective window structure, the combination of a window frame11, providing a transverse extension 11, at one side, and having in itsconfronting vertical surfaces corresponding narrow openings; planarclosures, l4, 15, for said openings, hinged at the corresponding edgesof said openings to swing toward each other; a lazy-tongs gratingstructure, vertically substantially coextensive with the frame, anchoredat a plurality of points in the extension 11, and foldable wholly withinsaid recess to be overlaid by the closure 14:; a vertical receivingstrip 28 underlying the vertical opening in the opposite frame member,hav 10b ing a plurality of apertures therethrough; studs 27 upon thefree edge of the grating;

a vertically movable lock-bar 30, mounted on the receiving strip 28;locking projections 32 upon said bar for cooperation with the studs ofthe grating; a rotatable key-receiving structure 34, in a side face ofthe frame; and a key 35 for direct cooperation with a projection on thelock-bar 30, to form the sole means of elevating the latter.

2. In a protective window structure, the combination of a window frame11, providing a transverse extension 11 at one side and having in itsconfronting vertical surfaces corresponding narrow openings; planarclosures, 14, 15, for said openings, hinged at the corresponding edgesof said openings to swing toward each other; a lazy-tongs gratingstructure, vertically substantially coextensive with the frame, anchoredat a plurality of points in the extension 11, and foldable wholly withinsaid recess to be overlaid by the closure 14:; a vertical receivingstrip 28 underlying the vertical opening in the opposite frame member,having a plurality of apertures therethrough; In testimony whereof Wehereunto set our studs 27 upon the free edge of the grating; hands. avertically movable locking structure JOSEPH D HUGHES mounted in rear ofthe receiving strip 28 a key receiving structure in the inner side faceFREDERICK RETTIG' of the frame; and a key for cooperation In thepresence ofwith said locking structure to move the same GEORGE L.CHINDAHL,

to unlocking position. GEORGE '1. MAY, Jr.

